Site of the first pathological and bacteriological research facility in the United States.

On this island, you suck away your garbage via an elaborate pneumatic tube system.

Nikola Tesla's former home contains an homage hidden from plain sight.

These tracks are believed to be from a panicked dinosaur stampede.

Hundreds of preserved dinosaur footprints can be found along a hiking trail in this small village.

Thousands of fossilized footprints speckle this Bolivian national park.

This petite park lets visitors see and touch examples of fossilized dinosaur tracks.

Largest site of dinosaur footprints ever found includes more than 5,000 tracks.

Tracks of ceratosaurus and Coelophysis rhodesiensis tracks can be found fossilized in the sandstone near Mt. Etjo.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

One of the few places in the world where visitors can walk alongside fossilized tracks from 80 different dinosaur species.

Search for traces of the dinosaurs that roamed here more than 90 million years ago.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

On this stunning Scottish island, you can walk in the footsteps of dinosaurs.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

Ride in 1960s style on the private luxury train Marshal Josip Tito used to travel around Yugoslavia.

A historic freight system that found the true gold rush is in tourism.

Known as the most scenic route in Sri Lanka, this train line is steeped in history and offers an unparalleled view of the country.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

This historic little railroad runs through some of the most beautiful scenery in Germany.

The oldest operating steam locomotive in Canada runs along this heritage railway.

This spectacular track has run continuously since 1882.

A historic steam train meanders along one of the most scenic rail routes in Germany's Black Forest.