Well-preserved, Roman amphitheater, built to seat 20,000 people, hosting summer opera program.

Giant stainless steel atom, particles connected by escalators, with exhibitions & views from 92m.

Observatory on top of Rockefeller Center, with an ocean-liner style design, offering city views.

Landmark, over 553-metre tower featuring a glass floor & a revolving eatery with panoramic views.

Former Navy training center draws crowds with carnival rides, restaurants, shops & fireworks.

Landmark 1950s-built palace of arts & culture with theater, sports field & 30th-floor terrace.

Football arena home to Bayern Munich, with a museum & stadium tours, holding up to 75,000 fans.

Auditorium with 22,000 seats hosting sporting events, musical performances & other shows.

Huge Olympic park complex with a stadium, guided tours, sea life center, rock museum & concerts.

Concerts, fairs & other large-scale events are held at this vast exhibition center with a hotel.

Wide lawns with sculptures and fountains in urban park with a museum, a cinema and a music complex.

A modern concert and sports arena in Madrid offering excellent acoustics and great sightlines. Capacity around 16,000-17,000. General admission provides the most electric atmosphere, though it gets hot during events.

Trampolining, dodgeball games & a foam pit at a park with a cafe serving burgers & milkshakes.

Elegant, chateau-style castle hosting guided tours, an art gallery, 2 restaurants and 3 hotels.

Playful indoor place with over 100 interconnected trampolines & a lineup of special activities.

Elegant, modern restaurant serving sophisticated Indian & Pakistani halal dishes.

This iconic domed stadium hosts baseball games & other sporting events, plus concerts & exhibitions.

Unique outdoor destination featuring huge, colorful street murals by artists from around the globe.

One of Britain's great Victorian splendours, most famous for the Proms classical music festival.

Contemporary exhibition centre also staging conferences, awards ceremonies and sporting events.

Huge community events complex with museums, theaters, restaurants & shops, plus the Space Needle.

Fiber/ADSL broadband & digital TV provider, also selling smartphones & accessories.

20,000-capacity indoor arena, spanned by a steel arch support, hosting sport events and concerts.

Connected skyscrapers with a rooftop garden observatory, plus a restaurant & lounge with city views.

Self-guided Titanic museum offering 9 interactive galleries that re-tell the iconic story.

Landmark circus top-like space for major events & concerts with several separate spaces for rent.

Palatial choice offering elegant rooms & luxe suites with multiple dining options, plus shopping.

Bullfighting arena built in the 1920s in neo-Mudéjar style & used for bullfights, concerts & events.

Motor company's futuristic distribution center & exhibition hall, with a restaurant & event space.

Leisure complex with a bowling alley, go-kart circuit & paintball range, plus laser tag & climbing.

Landmark museum of animals and natural phenomena, with hands-on exhibits and animatronic dinosaurs.

Modern soccer stadium, the home of Schalke 04, with a closable roof, club museum & movable pitch.

Sceney spot that's both a chic lounge with DJs & a modern steakhouse serving prime cuts & seafood.

Relaxed complex of open-air pavilions hosting a cafe & 2 casual restaurants, plus a playground.

Imposing Roman amphitheater hosting historic reconstructions plus regular concerts & events.

Pyramid-shaped, 17,000-seat, indoor venue hosting major music, sports and cultural events.

Huge, modern riverside auditorium for international rock & pop concerts, with a private pier.

Grilled meats and DJ-spun tunes in a splashy two-story steakhouse with a rooftop terrace.