See the best of Frankfurt across two audio-guided routes

Tour the maximum security prison that was home to prisoners for over 60 years

Cruise around the sun-soaked streets of Georgia's oldest city

Make Melbourne your oyster with this unlimited pass!

Take a tour of a 1900s American convenience store - complete with snake-oil!

Get your key to France's third-largest city

An ambient night tour of the national monuments in DC

Reality is in the eye of the beholder in Riga's physics-twisting museum

See thousands of marine animals in Canada's largest aquarium

Explore the most haunted locales around America's oldest city

Forget lions - ghosts prowl around this Savannah

Get your ghost busting game-face on and explore Boston's most haunted locations

Interactive and educational fun with pirates - there's even a treasure hunt!

Meet blacksmiths, lock and load a musket, and climb a Spanish watchtower

Gorillas, grizzlies and live animal keeper talks in lush Seattle surroundings

Meet over 200 species of wildlife from the Everglades and beyond

Interactive exhibits and displays that will take you on a journey through time

Permanent and changing contemporary art in the city's coolest building

Discover the dark history of bodies and bones hidden in sunny Key West

Put boredom to the sword and explore the world's largest historical armory

Access 19 museums in and around Graz over 24 hours

A sizzling feast of spicy goodness and a mesmerizing live show

Your all-in-one sightseeing ticket to the best that Tallinn has to offer

Cruise through the marshy swamps and wetlands on the lookout for gators