Barringer Meteor Crater, Arizona (photo by D. Roddy).
Impact site of a nickel-iron meteorite that fell on earth 49,000 years ago.
It was 150 feet across (only!), weighed roughly 300,000 tons, and was traveling
at a speed of 40,000 miles per hour. The force generated by its impact was
equal to the explosion of 20 million tons of TNT. 
Pontcysyllte Aqueduct, Wales, UK (photo by Salmon Postcards).
Boats in the air! Pontcysyllte (pronounced 'Pont-ker-sulth-tee')
Aqueduct is considered to be the best work of Scottish engineer Thomas Telford
who built it 1007ft long and 117ft above the River Dee as part of the Llangollen Canal.
The first stone was laid in July 1795 and construction took 10 years costing £47,000.
(photo by B. Kodek)
And this is how my cruising in this aqueduct looks some 200 years later.
Marple Top Lock, Peak Forest Canal, England (photo by M. Pearson).
Living on a canal boat is my kind of holiday. I am always struck by the incredible
variety of the English landscape as seen from the perspective of the inland waterway
traveler. And there are few things better than a stop at a canalside pub after hard work
in a flight of locks.
Pentre Ifan, Wales, UK (photo by D. Meozzi).
North Pembrokeshire has an unrivalled accumulation of prehistoric sites. I must have
seen at least ten of them when walking along a part of the 170 miles long "Pembrokeshire
Coast Path". Pentre Ifan is probably the best preserved one. It is over 5,500 years
old and very little is known about people who built it. Back to home.