Should note that the full program for the Fifth International Congress on Construction History–now less than four weeks away!–is now online at 5icch.org.  It’s the usual mind-blowing array of topics ranging from ancient Roman vaulting to South American high rise construction in the 1950s.  And throughout there’s a great mix of CH all-stars and new faces.  Tours are filling up, as are rooms at the Palmer House.

There will be single-day registrations available at the event for Chicagoans interested in dropping in–see information here.